About Us
Extreme Automatics is a Vanguard business located in Amelia, Ohio with decades of real world racing experience. We design, manufacture and test our own automatic transmission parts in house.
Lonnie Diers left his day job in 2001 to start Extreme Automatic and over the years the team has grown into friends and family joining the team to produce high quality valve bodies, drums and solenoids. We provide customers with a quick turnaround time and produce high quality automatic transmissions in house.
Every transmission that leaves EA is dyno tested before it leaves. We ensure our customer receives a working transmission and is a part of the build process along the way.
Meet the Crew That Makes This All Possible
Ryan
When Ryan isn't helping us weld, run the CNC or anything in between you can find him with his family on or off the track!
Jeremy
Jeremy is an ASE Master Certified Tech for 20 years and has worked at Extreme Automatics for almost 3 years! He builds all of EA's high horsepower TH400's, 4L80's and powerglides along with a handful of other OEM GM based transmissions.
When he's not working, he's working or at the track with his Malibu Wagon. He enjoys being at the track and watching EA customers going rounds!
Chris
If you call EA, chances are you'll talk to Chris or Steve!
Steve
Got technical questions? Steve knows his automatic transmissions and is happy to answer any question, big or small!
Marci
If you see images or video on our social media channels, Marci is to blame! She's our Marketing & Social Media Director and can be found at the track with our crew, working on Pocket Change, selling merch, handing out her famous chocolate chip cookies or cooking food for the team!